22133412021 has 32 divisors (see below), whose sum is σ = 35772226560. Its totient is φ = 11883292416.

The previous prime is 22133412001. The next prime is 22133412083. The reversal of 22133412021 is 12021433122.

It is not a de Polignac number, because 22133412021 - 2⁷ = 22133411893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22133412001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156750 + ... + 262368.

It is an arithmetic number, because the mean of its divisors is an integer number (1117882080).

Almost surely, 2^22133412021 is an apocalyptic number.

22133412021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22133412021 is a deficient number, since it is larger than the sum of its proper divisors (13638814539).

22133412021 is a wasteful number, since it uses less digits than its factorization.

22133412021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106233.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22133412021 its reverse (12021433122), we get a palindrome (34154845143).

The spelling of 22133412021 in words is "twenty-two billion, one hundred thirty-three million, four hundred twelve thousand, twenty-one".